CVE-2026-62865 (GCVE-0-2026-62865)
Vulnerability from cvelistv5
Published
2026-08-25 21:52
Modified
2026-08-26 12:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Typebot is an open-source chatbot builder. In self-hosted versions prior to 3.18.0, the server-side Send Email integration block allows arbitrary reading of local files on the server. The block builds Nodemailer attachments from a typebot variable, and its parseAttachments helper returns the supplied value as a filesystem path whenever it does not start with the application's own base URL, instead of requiring an http or https URL. The Nodemailer transport is created without disableFileAccess or disableUrlAccess, both of which default to false, so an attachment specified as an absolute server path is read from the local filesystem and delivered. Because both the attachment value and the recipient list are attacker-controllable typebot variables, any registered user can publish a bot whose Send Email block attaches an absolute path such as /etc/passwd or /proc/self/environ and mails it to an address they control. This enables reading any file the server process can access, including process environment secrets such as the credential encryption key and database connection string, without administrative privileges or victim interaction. Open signup is enabled by default and the system SMTP credential is already configured, so no non-default configuration is required. This issue is fixed in version 3.18.0.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| baptisteArno | typebot.io |
Version: < 3.18.0 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-62865",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T12:29:22.505941Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-26T12:31:36.135Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-j32h-2r6x-wmf3"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "typebot.io",
"vendor": "baptisteArno",
"versions": [
{
"status": "affected",
"version": "\u003c 3.18.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Typebot is an open-source chatbot builder. In self-hosted versions prior to 3.18.0, the server-side Send Email integration block allows arbitrary reading of local files on the server. The block builds Nodemailer attachments from a typebot variable, and its parseAttachments helper returns the supplied value as a filesystem path whenever it does not start with the application\u0027s own base URL, instead of requiring an http or https URL. The Nodemailer transport is created without disableFileAccess or disableUrlAccess, both of which default to false, so an attachment specified as an absolute server path is read from the local filesystem and delivered. Because both the attachment value and the recipient list are attacker-controllable typebot variables, any registered user can publish a bot whose Send Email block attaches an absolute path such as /etc/passwd or /proc/self/environ and mails it to an address they control. This enables reading any file the server process can access, including process environment secrets such as the credential encryption key and database connection string, without administrative privileges or victim interaction. Open signup is enabled by default and the system SMTP credential is already configured, so no non-default configuration is required. This issue is fixed in version 3.18.0."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-73",
"description": "CWE-73: External Control of File Name or Path",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T21:52:16.717Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-j32h-2r6x-wmf3",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-j32h-2r6x-wmf3"
},
{
"name": "https://github.com/baptisteArno/typebot.io/commit/9c81300e5abb28a68a5af2920b92043e3512899d",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/baptisteArno/typebot.io/commit/9c81300e5abb28a68a5af2920b92043e3512899d"
},
{
"name": "https://github.com/baptisteArno/typebot.io/releases/tag/v3.18.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/baptisteArno/typebot.io/releases/tag/v3.18.0"
}
],
"source": {
"advisory": "GHSA-j32h-2r6x-wmf3",
"discovery": "UNKNOWN"
},
"title": "TypeBot: Arbitrary server file read via Send Email block attachment path"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-62865",
"datePublished": "2026-08-25T21:52:16.717Z",
"dateReserved": "2026-07-14T21:10:50.032Z",
"dateUpdated": "2026-08-26T12:31:36.135Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-62865\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-26T12:29:22.505941Z\"}}}], \"references\": [{\"url\": \"https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-j32h-2r6x-wmf3\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-26T12:31:03.664Z\"}}], \"cna\": {\"title\": \"TypeBot: Arbitrary server file read via Send Email block attachment path\", \"source\": {\"advisory\": \"GHSA-j32h-2r6x-wmf3\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.7, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"baptisteArno\", \"product\": \"typebot.io\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.18.0\"}]}], \"references\": [{\"url\": \"https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-j32h-2r6x-wmf3\", \"name\": \"https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-j32h-2r6x-wmf3\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/baptisteArno/typebot.io/commit/9c81300e5abb28a68a5af2920b92043e3512899d\", \"name\": \"https://github.com/baptisteArno/typebot.io/commit/9c81300e5abb28a68a5af2920b92043e3512899d\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/baptisteArno/typebot.io/releases/tag/v3.18.0\", \"name\": \"https://github.com/baptisteArno/typebot.io/releases/tag/v3.18.0\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Typebot is an open-source chatbot builder. In self-hosted versions prior to 3.18.0, the server-side Send Email integration block allows arbitrary reading of local files on the server. The block builds Nodemailer attachments from a typebot variable, and its parseAttachments helper returns the supplied value as a filesystem path whenever it does not start with the application\u0027s own base URL, instead of requiring an http or https URL. The Nodemailer transport is created without disableFileAccess or disableUrlAccess, both of which default to false, so an attachment specified as an absolute server path is read from the local filesystem and delivered. Because both the attachment value and the recipient list are attacker-controllable typebot variables, any registered user can publish a bot whose Send Email block attaches an absolute path such as /etc/passwd or /proc/self/environ and mails it to an address they control. This enables reading any file the server process can access, including process environment secrets such as the credential encryption key and database connection string, without administrative privileges or victim interaction. Open signup is enabled by default and the system SMTP credential is already configured, so no non-default configuration is required. This issue is fixed in version 3.18.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-73\", \"description\": \"CWE-73: External Control of File Name or Path\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-08-25T21:52:16.717Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-62865\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-26T12:31:36.135Z\", \"dateReserved\": \"2026-07-14T21:10:50.032Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-08-25T21:52:16.717Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…